[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1483) MySQL5: No Dialect mapping for JDBC type: -1

[Don Mitchell (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31404#action_31404 ] 

Don Mitchell commented on HHH-1483:
-----------------------------------

I just ran into this and instead of changing the dialect, I used the SQLQuery addScalar() method to specify the type of the text column as Hibernate.STRING.  For example:
  
  SQLQuery q = getSession().createSQLQuery("select * from ...");
  q.addScalar("af.email", Hibernate.STRING);

The downside to this is that it seems like you have to specify all of the columns via the addScalar() method, although you don't need to specify the type of each, just do that for the ones you want to override.




> MySQL5: No Dialect mapping for JDBC type: -1
> --------------------------------------------
>
>                 Key: HHH-1483
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1483
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.1.2
>         Environment: MySQL 5.0.18-nt
>            Reporter: Sergey Vladimirov
>            Priority: Minor
>
> MySQL5: No Dialect mapping for JDBC type: -1
> SELECT answpos,answer  FROM votes_answers WHERE question=? ORDER BY answpos
> mysql> describe votes_answers;
> +----------+---------+------+-----+---------+-------+
> | Field    | Type    | Null | Key | Default | Extra |
> +----------+---------+------+-----+---------+-------+
> | question | int(11) | NO   | MUL |         |       |
> | answpos  | int(11) | NO   |     |         |       |
> | answer   | text    | YES  |     | NULL    |       |
> +----------+---------+------+-----+---------+-------+
> mysql> describe temp;
> +---------+---------+------+-----+---------+-------+
> | Field   | Type    | Null | Key | Default | Extra |
> +---------+---------+------+-----+---------+-------+
> | answpos | int(11) | NO   |     | 0       |       |
> | answer  | text    | YES  |     | NULL    |       |
> +---------+---------+------+-----+---------+-------+
> Please, let me know what to add to MySQL5Dialect :)
> Will it be ok to add? :
> registerColumnType( Types.LONGVARCHAR, "text" );

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